Improvement in millstone balances



that@ hm roHN WALSH, or GALENA, ILLLNos.'

Letters Patent'No. 111,282, dated January 24, 1871.

IMPROVEMENT IN-MILLSTONE BALANCES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom fit may conce/ru Be it known that I, JOHN WALSH, of Galena, in the county of J o Daviess and State of Illinois, have invented a new and improved Mllstone Balance; and I do hereby declare that the following is a` full, clear, and exact description thereof; which will enable others skilled in the art to make and use the same', reference being had to the accompanying drawing forming part of this specification. j

This invention relates to improvements in'balancing apparatus for millstones, and consists ina fraxnel 1madeingtwo parts, havingI lugs for attachment to the upperantl lower edges ofthe hoop of the millstone, and clampingbolts connectingr them together and clamping them on the hoop, on which frames is arranged a-pair of weightslto be adjusted to or from the plane of the point of suspension ot the stone, Three of these iames are to be attacherLt-o the hoop and adjusted, all as hereinafter specified.

Figure 1 is a side elevation ot' a part 'of the hoop of a millstone and one of the weighted frames;

liig'ure 2 is a section of' the same on the line x :vof fig. l; and

Figure 3 is a top view ofthe hoop wit-h three of the balancing frames applied to it.

Y Similar letters of reference indicate parts.

A represents the band of the millstone; B, one of the parts of the said lframe; and G-the other, which part consists of a horizontal bar, u, and two vertical bars, b, of sheet metal, the horizontal ones being to extend along the band A between the vertical ones, and the latter nto engage the edges oi' the band by lugs or hooks d, and extend toward those of the otherl part of the frame, nearly meetinglr in the center ofthe said band, for being supported on the`band, while the two parts' are clamped bythe corresponding bolts .D passing through ears F, and screwing the lugs (l against the edges of band A.

E represents the weights, consisting of crescentshaped (solid or hollow) bars, .which are mounted on the rod F', suspended .vertically from the -bars a of the frames by ears G projecting from them, said weights being capable of adjustment up and down on the said rod, and provided with keys H, orit may be set-screws, for holding them. They are also provided with setfscrews I near the ends, for screwing against the hoop A, to hold them rigidly and prevent rattling,

rPhe frames are attached. to the hoop at about equidistant positions around the stone and then adj usted to or from each other until the' stone is balanced while standing; then the stone is set iu motion to ascertain if itbalances while running, which maynot be the case, owing to the centrifugal force of the weights if too high or too low relatively to the said horizontal plane of the point on which the stone is hung, but which is remediedby adjusting the weights up or down on the rods F above or below the horizontal plane, as may be required, as will be shown bythe test of running the stone, which will run too `high on the side on vwhich the weights may be too low,and vice tersa.

It' the weights are made hollow they are to be filled with heavy material7 of which more or less may be uscd,as required.

Having thus described `my invention, I claim 'as new and desire to ,secure hy Letters Patentt A balance-frame for millstones, formed in two parts, B C, and provided with retaining hookscl clamped together on and combined with the band, as and fo'rthe purpose described. y

Witnesses: J DEIN WALSH.

M. M. MILLER, JAMES FLOYD. 

